/Engine/Plugins/Developer/Concert/ConcertMain/Source/Concert/Public/IConcertSession.h
Send a custom event event to the given endpoints
void InternalSendCustomEvent ( const [UScriptStruct](API\Runtime\CoreUObject\UObject\UScriptStruct) * EventType, const void * EventData, const [TArray](API\Runtime\Core\Containers\TArray)< [FGuid](API\Runtime\Core\Misc\FGuid) > & DestinationEndpointIds, [EConcertMessageFlags](API\Plugins\ConcertTransport\EConcertMessageFlags) Flags, [TOptional](API\Runtime\Core\IO\TOptional)< [FConcertSequencedCustomEvent](API\Plugins\Concert\FConcertSequencedCustomEvent) > InSequenceId )